Results 11 to 20 of about 170,507 (251)

Primary Nasopharngeal Yolk Sac Tumor: A Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Yolk sac tumour also known as primitive endodermal tumour is the most common malignant germ cell tumour (GCT) in the paediatric age group. Most common sites of involvement are ovaries and testes, but rarely can occur in the extragonadal sites.
Dhanalakshmi Arumugam   +4 more
doaj   +1 more source

Urachal yolk sac tumor penetrating the bladder as a diagnostic challenge: a case report and review of the literature

open access: yesDiagnostic Pathology, 2022
Background Yolk sac tumor (YST) is a germ cell tumor. It is primarily located in the gonads but can also occur extragonadally (extragonadal yolk sac tumor - EGYST), most commonly in the pelvis, retroperitoneum or mediastinum.
Vladimír Šámal   +4 more
doaj   +1 more source

Pure primary yolk sac tumor of the endometrium tends to occur at a younger age: A case report and literature analysis

open access: yesSAGE Open Medical Case Reports, 2021
We present a case of primary yolk sac tumor of the endometrium. This rare tumor occurred in a 43-year-old woman with a pure primary yolk sac tumor. The tumor resembled yolk sac tumor morphology of the ovary.
Huijuan Ge, Rui Bi
doaj   +1 more source

Predictive capacity of a miRNA panel in identifying teratoma in post‐chemotherapy consolidation surgeries

open access: yesBJUI Compass, Volume 4, Issue 1, Page 81-87, January 2023., 2023
Abstract Objectives To investigate the utility of a novel serum miRNA biomarker panel to distinguish teratoma from nonmalignant necrotic/fibrotic tissues or nonviable tumours in patients with NSGCT undergoing post‐chemotherapy consolidation surgery.
Joseph A. Moore   +12 more
wiley   +1 more source

Morphology of the avian yolk sac

open access: yesJournal of morphology, 2020
The avian yolk sac is a multifunctional extraembryonic organ that serves not only as a site of nutrient (yolk) absorption, but also for early hemopoiesis, and formation of blood vessels.
J. M. Starck
semanticscholar   +1 more source

KIT Is Required for Fetal Liver Hematopoiesis

open access: yesFrontiers in Cell and Developmental Biology, 2021
In the mouse embryo, endothelial cell (EC) progenitors almost concomitantly give rise to the first blood vessels in the yolk sac and the large vessels of the embryo proper.
Alessandro Fantin   +6 more
doaj   +1 more source

Cushing’s syndrome caused by ACTH precursors secreted from a pancreatic yolk sac tumor in an adult—a case report and literature review

open access: yesFrontiers in Medicine, 2023
Here, we report the first adult case of pancreatic yolk sac tumor with ectopic adrenocorticotropic hormone (ACTH) syndrome. The patient was a 27-year-old woman presenting with abdominal distension, Cushingoid features, and hyperpigmentation.
Johnny Yau Cheung Chang   +12 more
doaj   +1 more source

K-means segmentation based-on lab color space for embryo detection in incubated egg [PDF]

open access: yesJ. Ilm. Tek. Elektro Komput. dan Inform., 2022, Vol. 7, No. 2, p. 175-185, 2021
The quality of the hatching process influences the success of the hatch rate besides the inherent egg factors. Eliminating infertile or dead eggs and monitoring embryonic growth are very important factors in efficient hatchery practices. This process aims to sort eggs that only have embryos to remain in the incubator until the end of the hatching ...
arxiv   +1 more source

Review on recent advances in two‐dimensional nanomaterials‐based cathodes for lithium‐sulfur batteries

open access: yesEcoMat, Volume 5, Issue 2, February 2023., 2023
Two‐dimensional nanomaterials, a new class of sheet‐like nanomaterials, play a critical role in cathode for lithium‐sulfur batteries owing to their tremendous physical and electrochemical properties. In this review, the state‐of‐the‐art progress in two‐dimensional nanomaterials‐based cathodes for lithium‐sulfur batteries is summarized from different ...
Hongyuan Xu   +10 more
wiley   +1 more source

Ovarian yolk sac tumor in postmenopausal females

open access: yesMedicine, 2018
Rationale: Ovarian yolk sac tumors (YSTs) are the second most common histologic type of ovarian germ cell tumors. Most patients are adolescent and young women, while cases in postmenopausal women were rarely reported.
Yao Wang   +6 more
semanticscholar   +1 more source

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